package com.heima.article.service.imp;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.redis.CacheService;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;

import com.heima.model.article.ApArticleConfig;
import com.heima.model.article.ApArticleContent;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.vos.HotArticleVo;

import com.heima.model.common.dtos.ArticleHomeDto;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.article.pojos.ApArticle;
import org.apache.commons.lang.StringUtils;
import org.joda.time.DateTime;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

@Service
@Transactional
public class ApArticleServiceimp extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {
    @Autowired
    private ApArticleMapper apArticleMapper;
    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;
    @Autowired
    private ApArticleContentMapper apArticleContentMapper;
    @Autowired
    private ArticleFreemarkerService articleFreemarkerService;
    @Autowired
    private CacheService cacheService;

    private final static short MAX_PAGE_SIZE = 50;

    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDto dto) {



        //如果为空手动设置为10
        Integer size = dto.getSize();
        if (size == null && size == 0) {
            size = 10;
        }
        //使用数学公式，最大长度为50，最小值为10
        int min = Math.min(size, MAX_PAGE_SIZE);
        dto.setSize(min);
        //判断上拉刷新最新数据和下拉刷新当前时间之前的数据都为空，给当前代表的枚举类自动赋值为1.
        if (!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_MORE) && !loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)) {
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //判断上拉刷新最新数据和下拉刷新当前时间之前的数据都为空，给两个时间赋值为当前时间
        if (dto.getMaxBehotTime() == null) dto.setMaxBehotTime(new Date());
        if (dto.getMinBehotTime() == null) dto.setMinBehotTime(new Date());
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, ArticleConstants.LOADTYPE_LOAD_MORE);

        return ResponseResult.okResult(apArticles);
    }

    /**
     * 保存app端相关文章
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult saveArticle(ArticleDto dto) {

        //        try {
        //            Thread.sleep(3000);
        //        } catch (InterruptedException e) {
        //            e.printStackTrace();
        //        }
        //1.检查参数
        if (dto == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        ApArticle apArticle = new ApArticle();
        BeanUtils.copyProperties(dto, apArticle);

        //2.判断是否存在id
        if (dto.getId() == null) {
            //2.1 不存在id  保存  文章  文章配置  文章内容

            //保存文章
            save(apArticle);

            //保存配置
            ApArticleConfig apArticleConfig = new ApArticleConfig(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);

            //保存 文章内容
            ApArticleContent apArticleContent = new ApArticleContent();
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.insert(apArticleContent);

        } else {
            //2.2 存在id   修改  文章  文章内容

            //修改  文章
            updateById(apArticle);

            //修改文章内容
            ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getId()));
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.updateById(apArticleContent);
        }

        //异步调用 生成静态文件上传到minio中
        articleFreemarkerService.buildArticleToMinIO(apArticle, dto.getContent());


        //3.结果返回  文章的id
        return ResponseResult.okResult(apArticle.getId());
    }
    /**
     * 加载文章列表
     * @param dto
     * @param type      1 加载更多   2 加载最新
     * @param firstPage true  是首页  flase 非首页
     * @return
     */
    @Override
    public ResponseResult load2(ArticleHomeDto dto, Short type, boolean firstPage) {
        if(firstPage){
            String jsonStr = cacheService.get(ArticleConstants.HOT_ARTICLE_FIRST_PAGE + dto.getTag());
            if(StringUtils.isNotBlank(jsonStr)){
                List<HotArticleVo> hotArticleVoList = JSON.parseArray(jsonStr, HotArticleVo.class);
                ResponseResult responseResult = ResponseResult.okResult(hotArticleVoList);
                return responseResult;
            }
        }
        return load(type,dto);
    }

}
